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Cadillac Ct4

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Cadillac CT4: A Comprehensive Guide

The Cadillac CT4 is a compact luxury sedan aimed at providing a blend of performance, technology, and Cadillac's signature style. Introduced for the 2020 model year, it replaced the Cadillac ATS sedan and slots below the larger CT5 in Cadillac's lineup. The CT4 competes with vehicles such as the BMW 3 Series, Audi A4, and Mercedes-Benz C-Class.

Generations

First Generation (2020-Present)

The CT4 has had only one generation to date, starting in 2020. Here's a breakdown of key features and updates:

  • 2020: Introduction of the CT4 with two engine options: a 2.0-liter turbocharged four-cylinder and a 2.7-liter turbocharged four-cylinder. Available in Luxury, Premium Luxury, Sport, and V-Series trims. Standard features include Cadillac User Experience (CUE) infotainment system with an 8-inch touchscreen, Apple CarPlay, and Android Auto. Rear-wheel drive is standard, with all-wheel drive available.
  • 2021: Minor equipment changes and updates to option packages.
  • 2022: Wireless Apple CarPlay and Android Auto became standard.
  • 2023: Introduction of the CT4-V Blackwing with a twin-turbocharged 3.6-liter V6 engine, delivering exceptional performance. The CT4 also received minor styling updates.
  • 2024: Minimal changes carried over from 2023.

Reliability & Common Issues

While relatively new, the Cadillac CT4 has demonstrated some trends in terms of reliability. Overall, early reports suggest reasonable reliability, but some areas warrant close inspection:

Engine Issues

  • 2.7L Turbocharged Engine (L3B): This engine, particularly in early models (2020-2021), has experienced reports of valve lifter issues and piston ring problems in some vehicles, leading to oil consumption. Listen for any unusual engine noises, especially ticking or knocking sounds. Check for oil leaks. A pre-purchase inspection by a qualified mechanic is highly recommended for models equipped with this engine, especially older ones. Verify if any applicable Technical Service Bulletins (TSBs) address oil consumption or valve lifter issues.
  • 2.0L Turbocharged Engine (LSY): The 2.0L turbo has proven to be generally more reliable than the 2.7L. However, some owners have reported issues with the turbocharger itself. Check for any signs of turbo lag or unusual whistling noises during acceleration.

Transmission Issues

  • 8-Speed Automatic Transmission (8L45): Some owners have reported rough shifting or hesitation, particularly in early model years. Check for smooth and consistent shifts during a test drive. Ensure the transmission fluid is clean and has been changed according to the recommended service schedule.
  • 10-Speed Automatic Transmission (10L80): Found primarily with the 2.7L engine. While generally more robust, some reports of delayed shifts or harshness have surfaced. The same checks as the 8-speed apply.

Electrical Issues

  • Infotainment System (CUE): While improved over previous generations of CUE, some owners have reported occasional glitches or freezes. Verify that the touchscreen responds properly and that all features are functioning as expected. Check for software updates.
  • Sensor Malfunctions: Various sensors, including those related to driver-assist features (e.g., blind-spot monitoring, lane departure warning), can sometimes malfunction. Check the instrument cluster for any warning lights.

Other Potential Issues

  • Suspension Components: Listen for any unusual noises coming from the suspension during a test drive, especially over bumps. Check for worn ball joints, bushings, and struts/shocks.
  • Brake System: Ensure the brakes are responsive and do not exhibit any excessive noise or vibration. Check the brake pad thickness.

Driving Experience

The Cadillac CT4 offers a compelling driving experience, balancing comfort and athleticism.

Pros:

  • Agile Handling: The CT4's chassis is well-tuned, providing sharp and responsive handling. It feels planted and confident in corners.
  • Potent Engines: The turbocharged engines offer ample power for both everyday driving and spirited performance. The CT4-V Blackwing takes performance to another level with its powerful twin-turbo V6.
  • Comfortable Ride: Despite its sporty handling, the CT4 offers a comfortable and compliant ride, even on rough roads.
  • Stylish Design: The CT4's exterior design is modern and eye-catching, with sharp lines and a distinctive Cadillac grille.
  • Technology Features: The CT4 is equipped with a range of advanced technology features, including a user-friendly infotainment system and a suite of driver-assist systems.

Cons:

  • Rear Seat Space: Rear seat legroom can be tight, especially for taller passengers.
  • Interior Quality: While generally well-appointed, some interior materials may not feel as luxurious as those found in competing models from European brands.
  • Fuel Economy: Fuel economy can be average, particularly with the more powerful 2.7-liter engine and CT4-V models.

Buying Advice

When considering a used Cadillac CT4, here's some advice to keep in mind:

  • Model Year: Newer model years (2022+) are generally preferable, as they benefit from feature updates and potential reliability improvements.
  • Engine Choice: The 2.0L turbo is a safer bet for reliability, but the 2.7L offers significantly more power. If you opt for the 2.7L, prioritize a thorough pre-purchase inspection. If you want maximum performance and don't mind the higher price, the CT4-V Blackwing is an incredible machine.
  • Trim Level: The Premium Luxury and Sport trims offer a good balance of features and value.
  • Maintenance Records: Look for a vehicle with complete and documented maintenance records.
  • Pre-Purchase Inspection: A pre-purchase inspection by a qualified mechanic is essential, especially for models equipped with the 2.7L engine. Pay particular attention to the engine, transmission, and suspension.
  • Check for Recalls and TSBs: Check the vehicle's VIN with the National Highway Traffic Safety Administration (NHTSA) to see if there are any outstanding recalls. Also, research any applicable Technical Service Bulletins (TSBs) related to common issues.
  • Test Drive: A thorough test drive is crucial to assess the vehicle's overall condition and performance. Pay attention to engine noise, transmission shifting, brake performance, and suspension feel.

By following this guide and conducting thorough research, you can make an informed decision and find a Cadillac CT4 that meets your needs and expectations.

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